Date.prototype.format = function(format)
{
	var o = {
		"M+" : this.getMonth()+1, //month
		"d+" : this.getDate(), //day
		"h+" : this.getHours(), //hour
		"m+" : this.getMinutes(), //minute
		"s+" : this.getSeconds(), //second
		"q+" : Math.floor((this.getMonth()+3)/3), //quarter
		"S" : this.getMilliseconds() //millisecond
	}
	if(/(y+)/.test(format))
		format=format.replace(RegExp.$1,(this.getFullYear()+"").substr(4 - RegExp.$1.length));
	for(var k in o)
		if(new RegExp("("+ k +")").test(format))
		format = format.replace(RegExp.$1,RegExp.$1.length==1 ? o[k] :("00"+ o[k]).substr((""+ o[k]).length));
		return format;
}
var ddd = new Date();
document.write ("<div id='TtimerGK'>"+ddd.format('20yy年MM月dd日')+"<br />距2010高考还有</div>");
var now = new Date();
var grt= new Date("6/07/2010 00:00:00");
now.setTime(now.getTime()+250);
days = (grt - now) / 1000 / 60 / 60 / 24;
dnum = Math.floor(days);
document.write("<div id='timerGK'>"+dnum+"天</div>");